Messages in this thread Patch in this message | | | From | davej@redhat ... | Subject | [PATCH] missing copy_from_user check in mixcom driver. | Date | Mon, 11 Aug 2003 16:59:03 +0100 |
| |
diff -urpN --exclude-from=/home/davej/.exclude bk-linus/drivers/net/wan/comx-hw-mixcom.c linux-2.5/drivers/net/wan/comx-hw-mixcom.c --- bk-linus/drivers/net/wan/comx-hw-mixcom.c 2003-05-20 18:41:21.000000000 +0100 +++ linux-2.5/drivers/net/wan/comx-hw-mixcom.c 2003-07-13 06:04:34.000000000 +0100 @@ -763,7 +763,10 @@ static int mixcom_write_proc(struct file return -ENOMEM; } - copy_from_user(page, buffer, count = min_t(unsigned long, count, PAGE_SIZE)); + if (copy_from_user(page, buffer, count = min_t(unsigned long, count, PAGE_SIZE))) { + free_page((unsigned long)page); + return -EFAULT; + } if (*(page + count - 1) == '\n') { *(page + count - 1) = 0; } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |